Cited by 33Non-Invasive Vital Sign MonitoringSystemic Sclerosis and Related DiseasesThermoregulation and physiological responses

Local cold exposure test with a new arterial photoplethysmographic sensor in healthy controls and patients with secondary Raynaud’s phenomenon

Hahn, Martin, Hahn, Claudia, Jünger, Michael, Steins, Anke, Zuder, Daniel, Klyscz, Thomas, Büchtemann, Alexandra, Rassner, Gernot +1 more·1999·Microvascular Research

Abstract

Local cold exposure tests are used to diagnose cold-induced vasospastic disorders and to evaluate therapeutic success. We investigated the pulsatile signal detected with a newly developed arterial photoplethysmography (APPG) method and the signal change induced by local cold exposure using a temperature-controlled finger holder, comparing it with laser Doppler flux (red and green laser, rLDF and gLDF) and red blood cell velocity measured in nailfold capillaries (CBV). Ten healthy volunteers and 10 age- and sex-matched patients suffering from Raynaud's phenomenon due to systemic sclerosis were investigated using a moderate cooling temperature of 16 degrees C for 5 min. All signals were recorded simultaneously. The results show a significant reduction of CBV (P < 0.0001), rLDF (P < 0.0003), and gLDF (P = 0.0214) during cooling and characteristic changes in the APPG signal (for instance a decrease in pulse wave amplitude; P < 0.0001). Significant differences in the APPG amplitude could be detected under resting conditions; at cooling temperatures there were also significant differences in CBV and APPG. The temperature-controlled finger holder with its built-in APPG probe appears to be a useful tool for evaluating the effect of local cooling on finger skin perfusion and differentiating between healthy controls and patients with secondary Raynaud's phenomenon due to systemic sclerosis. The gLDF signal was rather weak, limiting its value in cold stress tests. The differences between controls and patients in CBV were somewhat smaller than in previous studies, suggesting the advantage of lower local cooling temperatures, e.g., 12 degrees C.

Integrity signals

Registry

Crossref · 10.1006/mvre.1998.2130

Cites

25 of 25 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • There are significant reductions in PPG pulse wave amplitudes (p < 0.0001) between healthy volunteers and individuals with systemic sclerosis both at rest and after cooling the finger to 16 degrees Celsius.

    “They report significant reductions in PPG pulse wave amplitudes (p < 0.0001) between the groups both at rest and after cooling the finger to 16 degrees Celsius [156].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Hahn, M., Hahn, C., Jünger, M., Steins, A., Zuder, D., Klyscz, T., Büchtemann, A., Rassner, G., & Blazek, V.
Affiliations
University of Tübingen (DE)
Venue
Microvascular Research
Publisher
Elsevier BV
Published
1999-03
Volume
57
Issue
2
Pages
187-198
ISSN
0026-2862 (ISSN-L)
OpenAlex
W1967376544
Cited by
33
References
25
Citations by year
2024: 1 · 2023: 1 · 2021: 4 · 2018: 2 · 2017: 1 · 2014: 2 · 2013: 2 · 2012: 3
FWCI
1.07
Type
journal article
Language
en
Open access
closed
Locations
  • Microvascular Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Systemic Sclerosis and Related Diseases
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
Keywords
secondary Raynaud's phenomenon, systemic sclerosis, cold-induced vasospasm, laser Doppler flowmetry, pulse wave amplitude
MeSH terms
Adult, Aged, Arteries, Blood Flow Velocity, Cold Temperature, Evaluation Studies as Topic, Female, Fingers, Humans, Male, Middle Aged, Raynaud Disease, Scleroderma, Systemic, Skin, Case-Control Studies, Laser-Doppler Flowmetry, Photoplethysmography

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review